CN219211125U

CN219211125U - Heavy material frame convenient for loading and unloading

Info

Publication number: CN219211125U
Application number: CN202320551372.8U
Authority: CN
Inventors: 陈志明; 潘玉帝; 王祥; 陈圣星
Original assignee: Wuhu Minghao Electromechanical Equipment Co ltd
Current assignee: Wuhu Minghao Electromechanical Equipment Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-06-20
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a heavy material frame convenient for loading and unloading, which comprises: the device comprises a bottom plate, a lifting screw rod, a lifting sliding block, a connecting plate, a special-shaped rotating shaft and a positioning groove; the upper surface interval and the vertical rotatable two lift lead screws that are provided with of bottom plate, and two lift sliders set up on two lift lead screws with synchronous slidable respectively, the level is provided with the connecting plate between two lift sliders, the vertical setting of below of connecting plate directly over the constant head tank can be at two slide boards of constant head tank length direction upper interval adjustable, two slide board's opposite face runs through respectively the level and is provided with rotatable two abnormal shape pivots, this heavy material frame of unloading in convenient goes up overcomes among the prior art through the manual work lifts the metal coiled material and overlaps locates the transmission shaft of material frame on, and the metal coiled material is heavier, the transmission shaft has certain height, waste time and energy, the problem of being inconvenient for the material loading.

Description

Heavy material frame convenient for loading and unloading

Technical Field

The utility model relates to the field of material frames, in particular to a heavy material frame convenient for loading and unloading.

Background

During sheet metal processing, the first step of the processing procedure is to unwind the purchased coiled material and to flatten the coiled material on the roll squeezer so as to obtain a planar steel plate, so that the coiled material can be used for subsequent procedures and further processed.

And (3) searching: chinese patent application number is "CN202022137654.2" discloses a heavy material frame of unloading in convenient, including main part installation shell, the inboard fixed mounting of main part installation shell upper end has driving motor, the transmission shaft is installed to driving motor's one end, the outside sliding connection of transmission shaft has connecting sleeve, the locating rack is installed in the outside that connecting sleeve's one end is located the transmission shaft, four blowing frames are evenly fixed mounting in the outside of connecting sleeve, the locating lever is installed to the inboard of transmission shaft one end, the outside sliding connection of locating lever one end has the connection pad, one side of connection pad is provided with four supporting springs, one of them the spacing ring is installed to blowing frame's one end, the connection pad passes through four supporting springs with the spacing ring and is connected, the connection slide is installed to the opposite side of connection pad, the regulation pole is installed to the inboard of connection slide bottom, the outside sliding connection of connection slide bottom has the direction slide.

The inventors have found that the following problems exist in the prior art in the practice of the present utility model:

when the coiled material on the material frame is used up, the metal coiled material is lifted manually and sleeved on a transmission shaft (expansion shaft) of the material frame, the metal coiled material is heavier, and the transmission shaft (expansion shaft) has a certain height, so that the material frame is time-consuming and labor-consuming and inconvenient to feed.

Therefore, the heavy material frame convenient for loading and unloading is a problem to be solved in the utility model, which can realize the functions of automatic loading and unloading in the use process, lightens the workload of workers, saves time and labor.

Disclosure of Invention

Aiming at the technical problems, the utility model aims to solve the problems that in the prior art, a metal coiled material is lifted manually and sleeved on a transmission shaft (an expansion shaft) of a material frame, the metal coiled material is heavier, the transmission shaft (the expansion shaft) has a certain height, time and labor are wasted, and feeding is inconvenient, so that the heavy material frame which can realize the functions of automatic feeding and discharging in the use process, lightens the workload of staff and is convenient to feed and discharge is time-saving and labor-saving.

In order to achieve the above object, the present utility model provides a heavy material rack for facilitating loading and unloading, the heavy material rack for facilitating loading and unloading comprising: the device comprises a bottom plate, a lifting screw rod, a lifting sliding block, a connecting plate, a special-shaped rotating shaft and a positioning groove;

the utility model discloses a coiled material uncoiling device, including bottom plate, lifting slide, connecting plate, two slide boards, two the upper surface interval of bottom plate just is provided with rotatable two lift lead screws vertically, and two the lift slider sets up respectively synchronous slidable is on two on the lift lead screw, is located between the lift lead screw the upper surface part of bottom plate inwards caves in the constant head tank that forms the arc structure, two the level is provided with the connecting plate between the lift slider, is located directly over the constant head tank the vertical setting of below of connecting plate can interval adjustable two slide boards on the length direction of constant head tank, two the opposite faces of slide board run through respectively the level and are provided with two abnormal shape pivots that are used for the centre gripping fixed coiled material and uncoiling or rolling and rotatable to it.

Preferably, the heavy material rack further comprises a tensioning mechanism comprising: the device comprises an electromagnet, a tensioning sliding block, a tensioning spring, a tensioning bracket and a tensioning roller; wherein, the liquid crystal display device comprises a liquid crystal display device,

the two opposite surfaces of the sliding plates above the two special-shaped rotating shafts are respectively partially recessed inwards to form two assembly grooves, electromagnets are fixedly arranged at the top in each assembly groove, the tensioning sliding blocks with the same magnetism as the electromagnets are arranged in the coiled materials in a lifting manner, the top ends of the tensioning springs which are vertically arranged are fixedly arranged on the electromagnets, the other ends of the tensioning springs are fixedly arranged on the tensioning sliding blocks, tensioning supports which are of inverted U-shaped structures are horizontally arranged on the tensioning sliding blocks, tensioning rollers are horizontally and rotatably arranged in the tensioning supports, and the bottom end parts of the tensioning rollers are positioned outside the tensioning supports and can be abutted to the coiled materials.

Preferably, the heavy material rack further comprises a driving mechanism for driving any one of the special-shaped rotating shafts to rotate, and the driving mechanism comprises: a first drive gear, a second motor, and a second drive gear; wherein, the liquid crystal display device comprises a liquid crystal display device,

any conical special-shaped rotating shaft is fixedly provided with a first driving gear towards one end of the lifting screw rod adjacent to the special-shaped rotating shaft, a second motor is vertically and fixedly arranged on the sliding plate corresponding to the special-shaped rotating shaft, and an output shaft of the motor is vertically and fixedly provided with a second driving gear meshed with the first driving gear.

Preferably, the heavy material rack further comprises a cylinder for driving the two sliding plates to move; wherein, the liquid crystal display device comprises a liquid crystal display device,

the lower surface interval and the vertical two mounting panels that are provided with of connecting plate, and the face level in opposite directions of two mounting panels is fixed and is provided with the support guide bar, two the slide level runs through and is provided with the guiding hole, and two the slide is assembled through this guiding hole slidable respectively on the support guide bar, every the equal horizontal fixed cylinder that is provided with of mounting panel, the free end horizontal fixation of its piston rod that is the level setting is rather than adjacent on the slide.

Preferably, the two ends of the connecting plate are respectively and horizontally sleeved on the connecting springs, one end of each connecting spring is horizontally and fixedly arranged on the mounting plate, and the other end of each connecting spring is horizontally and fixedly arranged on the sliding plate.

Preferably, the heavy material frame further comprises a vertical frame, the upper surface of the bottom plate is located at one side of each lifting screw rod and is vertically provided with an inverted-L-shaped vertical frame, and the top of each lifting screw rod vertically penetrates through and is rotatably arranged at the top of the vertical frame and is coaxially connected with a first motor fixed at the top of the vertical frame through a coupler.

Preferably, each vertical frame is vertically and fixedly provided with a guide rail parallel to the lifting screw rod, and a lifting sliding block on the lifting screw rod is inwards recessed towards one side part of the guide rail to form a guide groove matched with the guide rail, and the lifting sliding block is slidably assembled on the guide rail through the guide groove.

According to the technical scheme, the heavy material frame convenient for loading and unloading has the following beneficial effects when in use: when the automatic feeding device is used, coiled materials are horizontally placed in the positioning grooves matched with the positioning grooves, two sliding plates are driven to be separated in opposite directions to be positioned at two sides of the positioning grooves, then two lifting sliding blocks are started to synchronously descend so that the two sliding plates descend until the end parts of two special-shaped rotating shafts on the two sliding plates are positioned at the outer sides of two ends of the positioning grooves, then the two sliding plates are moved again so that the two sliding plates are mutually close until the two special-shaped rotating shafts on the two sliding plates penetrate from the hollow parts at two ends of the coiled materials and clamp and fix the coiled materials, then the two lifting sliding blocks are started to synchronously ascend so as to drive the coiled materials to ascend to the initial positions of the two lifting sliding blocks together, no personnel need to feed the coiled materials in person, and automatic feeding operation is realized, so that time and labor are saved;

when the coiled material is required to be discharged from the device, only two lifting sliding blocks are required to be driven to move downwards along the vertical direction synchronously until the coiled material falls into the positioning groove, and then two sliding plates are moved to move reversely and separate, so that two special-shaped rotating shafts on the two sliding plates are moved out of the two ends of the coiled material, the automatic discharging operation is completed, time and labor are saved, and the workload of workers is reduced.

In conclusion, the automatic feeding and discharging device can realize the functions of automatic feeding and discharging in the using process, reduces the workload of staff, and saves time and labor.

Additional features and advantages of the utility model will be set forth in the detailed description which follows; and none of the utility models are related to the same or are capable of being practiced in the prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic view of a heavy material rack for facilitating loading and unloading provided in a preferred embodiment of the present utility model;

FIG. 2 is a structural elevation view of a heavy material rack provided in a preferred embodiment of the present utility model for facilitating loading and unloading;

FIG. 3 is a structural cross-sectional view of a heavy material rack provided in a preferred embodiment of the present utility model to facilitate loading and unloading;

FIG. 4 is an enlarged schematic view of the structure of the part A in FIG. 3;

FIG. 5 is a schematic view of an assembly of a lifting slider, rails and a riser;

fig. 6 is a schematic diagram of the positional relationship between the profiled spindle and the coil of different sizes when the profiled spindle is lowered (the arrow indicates the lowering direction of the profiled spindle).

Description of the reference numerals

1. A bottom plate; 2. lifting the screw rod; 3. a lifting slide block; 4. a vertical frame; 5. supporting a guide rod; 6. a connecting plate; 7. a slide plate; 8. a special-shaped rotating shaft; 9. a tensioning mechanism; 901. an electromagnet; 902. tensioning the sliding block; 903. tensioning a spring; 904. tensioning a bracket; 905. a tension roller; 10. a connecting spring; 11. a cylinder; 12. a first motor; 13. a guide rail; 14. a driving mechanism; 1401. a first drive gear; 1402. a second motor; 1403. a second drive gear; 15. a positioning groove; 16. a coiled material; 17. and (5) an assembly groove.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

As shown in fig. 1 to 6, the heavy material rack convenient for loading and unloading provided by the utility model comprises: the lifting device comprises a bottom plate 1, a lifting screw rod 2, a lifting sliding block 3, a connecting plate 6, a special-shaped rotating shaft 8 and a positioning groove 15;

the utility model discloses a coil coiling machine, including bottom plate 1, lifting slide block, connecting plate 6, two slide plates 7 that the upper surface interval of bottom plate 1 just is vertical to be provided with rotatable two lifting slide rods 2, and two lifting slide blocks 3 respectively synchronous slidable set up two on lifting slide rod 2, be located between lifting slide rods 2 the upper surface part of bottom plate 1 inwards caves in the constant head tank 15 that forms the arc structure, two be provided with between the lifting slide blocks 3 the connecting plate 6 is located vertically in the below of connecting plate 6 just above the constant head tank 15 can interval adjustable two slide plates 7 in the length direction of constant head tank 15, two slide plate 7's opposite faces respectively the level run through be provided with be used for the centre gripping fixed coiled material 16 and to open a book or wind and two rotatable abnormal shape pivot 8.

In the above scheme, when in use, the coiled material is horizontally placed in the positioning groove 15 matched with the positioning groove, the two sliding plates 7 are driven to be separated in opposite directions to be positioned at two sides of the positioning groove 15, then the two lifting sliding blocks 3 are started to synchronously descend so that the two sliding plates 7 descend along with the two sliding plates until the end parts of the two special-shaped rotating shafts 8 on the two sliding plates 7 are positioned at the outer sides of the two ends of the positioning groove 15 (the positioning groove 15 plays a role in positioning as shown in fig. 5, so that when coiled materials 16 with different diameters are positioned in the positioning groove 15, the axes of coiled materials with different sizes are respectively parallel to the axes of the special-shaped rotating shafts 8, the axes of the two special-shaped rotating shafts 8 can be overlapped with the axes of the coiled materials 16 in the descending process, so that the two special-shaped rotating shafts 8 can penetrate into the coiled materials 16 from the middle parts of the two ends of the positioning groove 15 respectively, so as to clamp and fix the coiled material), then move the two sliding plates 7 again to enable the two sliding plates to approach each other until the two special-shaped rotating shafts 8 on the two sliding plates penetrate from the hollow parts at the two ends of the coiled material and clamp and fix the coiled material, then start the two lifting sliding blocks 3 to synchronously lift up to drive the coiled material to lift up to the initial positions of the two lifting sliding blocks 3 together, no personnel need to feed the coiled material in person, realize automatic feeding operation, save time and labor, only need to drive the two lifting sliding blocks 3 to synchronously move downwards along the vertical direction until the coiled material 16 falls into the positioning groove 15 when the coiled material 16 is required to be discharged from the device, then move the two sliding plates 7 to reversely move and separate, enable the two special-shaped rotating shafts 8 on the two sliding plates to move out from the two ends of the coiled material 16, thus, the automatic discharging operation is completed, time and labor are saved, and the workload of workers is reduced.

In a preferred embodiment of the utility model, the heavy material rack further comprises a tensioning mechanism 9, said tensioning mechanism 9 comprising: electromagnet 901, tensioning slider 902, tensioning spring 903, tensioning bracket 904, and tensioning roller 905; wherein, the liquid crystal display device comprises a liquid crystal display device,

the two opposite surfaces of the sliding plates 7 above the two special-shaped rotating shafts 8 are respectively and partially recessed inwards to form two assembly grooves 17, an electromagnet 901 is fixedly arranged at the top in each assembly groove 17, the tensioning sliding block 902 with the same magnetism as that of the electromagnet 901 is arranged in the coiled material 16 in a lifting manner, the top end of the tensioning spring 903 which is vertically arranged is fixedly arranged on the electromagnet 901, the other end of the tensioning sliding block is fixedly arranged on the tensioning sliding block 902, a tensioning support 904 which is of an inverted U-shaped structure is horizontally arranged on the tensioning sliding block 902, a tensioning roller 905 is horizontally and rotatably arranged in the tensioning support 904, and the bottom end part of the tensioning roller 905 is positioned outside the tensioning support 904 and can be abutted against the coiled material 16.

In the above-mentioned scheme, when the electromagnet 901 is energized, the energized electromagnet 901 has the same magnetism as the tensioning slider 902, so that a repulsive force is generated between the two, under the action of the repulsive force, the tensioning slider 902 is driven to vertically descend along the assembly groove 17 and overcome the action of the tensioning spring 903, so as to drive the tensioning bracket 904 on the tensioning slider 902 to descend, so that the tensioning roller 905 on the tensioning bracket 904 can horizontally abut against the coiled material 16, and in the uncoiling process, the tensioning roller 905 can always abut against the coiled material 16 to play a role in tensioning, and prevent part of materials on the coiled material 16 from loosening and falling off from the surface of the coiled material in the uncoiling process.

When the electromagnet 901 is powered off, the electromagnet 901 loses magnetism, and the tensioning slider 902 drives the tensioning bracket 904 thereon to rise to an initial position together under the action of the tensioning spring 903, so that the tensioning roller 905 on the tensioning bracket 904 is separated from the coiled material 16.

In a preferred embodiment of the present utility model, the heavy material rack further comprises a driving mechanism 14 for driving any one of the profiled rotating shafts 8 to rotate, and the driving mechanism 14 comprises: a first drive gear 1401, a second motor 1402 and a second drive gear 1403; wherein, the liquid crystal display device comprises a liquid crystal display device,

a first driving gear 1401 is fixedly arranged at one end of any conical special-shaped rotating shaft 8 facing the adjacent lifting screw rod 2, a second motor 1402 is vertically and fixedly arranged on the sliding plate 7 corresponding to the special-shaped rotating shaft 8, and a second driving gear 1403 which is in meshed connection with the first driving gear 1401 is fixedly arranged on an output shaft of the vertical motor.

In the above scheme, when in use, the second motor 1402 is driven to rotate its output shaft, so that the second driving gear 1403 on its output shaft rotates, and because the second driving gear 1403 is in meshed connection with the first driving gear 1402 on the special-shaped rotating shaft 8, the special-shaped rotating shaft 8 is driven to rotate by driving the second motor 1402 under the meshed relationship between the two driving gears, so as to further realize uncoiling operation on the coiled material 16 clamped and fixed on the two special-shaped rotating shafts 8.

In a preferred embodiment of the utility model, the heavy material rack further comprises a cylinder 11 for driving the movement of two of said slide plates 7; wherein, the liquid crystal display device comprises a liquid crystal display device,

the lower surface interval of connecting plate 6 is provided with two mounting panels and vertical, and the face level in opposite directions of two mounting panels is fixed and is provided with support guide bar 5, two slide 7 level runs through and is provided with the guiding hole, and two slide 7 is assembled through this guiding hole slidable respectively on the support guide bar 5, every the equal horizontal fixed cylinder 11 that is provided with of mounting panel, the free end horizontal fixed setting of its piston rod that is the level setting is rather than adjacent on slide 7.

In the above scheme, drive two through the synchronization two cylinder 11 drive two slide 7 is close to or keeps away from each other in the horizontal direction, simple structure, convenient operation, and two slider 7 assemble through the guiding hole on oneself slidable respectively support the guide bar 5 on, the effect of support the guide bar 5 is: on one hand, the two sliding plates 7 are supported, and on the other hand, the two sliding plates 7 are guided, so that the two sliding plates are ensured to move along the horizontal direction.

In a preferred embodiment of the present utility model, two ends of the connecting plate 6 are respectively horizontally sleeved on the connecting springs 10, one end of each connecting spring 10 is horizontally fixed on the mounting plate, and the other end is horizontally fixed on the sliding plate 7.

In the above scheme, the connecting spring 10 plays a role of buffering, so that the two sliding plates 7 can move stably along the horizontal direction.

In a preferred embodiment of the present utility model, the heavy material rack further comprises a vertical frame 4, the upper surface of the bottom plate 1 is located beside each lifting screw 2 and is vertically provided with an inverted L-shaped vertical frame 4, and the top of each lifting screw 2 is vertically penetrated and rotatably arranged at the top of the vertical frame 4 and is coaxially connected with a first motor 12 fixed at the top of the vertical frame 4 through a coupling.

In the above scheme, the top of the screw rod 2 is fixed on the stand 4 in a large vertical and rotatable manner through the bearing, so that the stability and reliability of the installation of the screw rod 2 are improved, in addition, the screw rod 2 is driven to rotate by driving the output shaft of the first motor 12 to rotate, and the lifting sliding block 3 is driven to lift along the shaft body of the screw rod 2.

In a preferred embodiment of the present utility model, a guide rail 13 parallel to the lifting screw 2 is vertically and fixedly arranged on each stand 4, and a part of the lifting slider 3 on the lifting screw 2 facing to one side of the guide rail 13 is inwards recessed to form a guide groove matched with the guide rail 13, and the lifting slider 3 is slidably assembled on the guide rail 13 through the guide groove.

In the above scheme, through the cooperation of the guide rail and the guide groove on the lifting slide block 3, the lifting slide block 3 can be ensured to stably and reliably linearly lift along the screw rod 2.

In summary, the heavy material frame convenient for loading and unloading provided by the utility model overcomes the problems that in the prior art, a metal coiled material is lifted manually and sleeved on a transmission shaft (an expansion shaft) of the material frame, the metal coiled material is heavier, the transmission shaft (the expansion shaft) has a certain height, time and labor are wasted, and loading is inconvenient.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. The utility model provides a heavy material frame of unloading in convenient, its characterized in that, heavy material frame in convenient unloading includes: the lifting device comprises a bottom plate (1), a lifting screw rod (2), a lifting sliding block (3), a connecting plate (6), a special-shaped rotating shaft (8) and a positioning groove (15);

the utility model discloses a coil uncoiling device, including bottom plate (1), lifting slide block (7), connecting plate (6), connecting plate (8), two lifting slide block (3) are provided with rotatable two lifting slide blocks (2) interval and are perpendicular respectively synchronous slidable set up two on lifting slide block (2), be located between lifting slide block (2) the upper surface part of bottom plate (1) inwards sunken constant head tank (15) that form the arc structure, two be provided with connecting plate (6) between lifting slide block (3) level is located the below vertical setting of connecting plate (6) directly over constant head tank (15) interval adjustable two slide plates (7) on the length direction of constant head tank (15), two the opposite faces of slide plate (7) are respectively the level run through and are provided with two abnormal shape pivot (8) that are used for centre gripping fixed coiled material (16) and unwind or rolling and rotatable.

2. The heavy material rack facilitating loading and unloading according to claim 1, further comprising a tensioning mechanism (9), said tensioning mechanism (9) comprising: an electromagnet (901), a tensioning sliding block (902), a tensioning spring (903), a tensioning bracket (904) and a tensioning roller (905); wherein, the liquid crystal display device comprises a liquid crystal display device,

two opposite surfaces of the sliding plates (7) above the two special-shaped rotating shafts (8) are respectively partially recessed inwards to form two assembly grooves (17), electromagnets (901) are fixedly arranged at the top in each assembly groove (17), the tensioning sliding blocks (902) with the same magnetism as the electromagnets (901) are arranged in the coiled material (16) in a lifting mode, the top ends of the tensioning springs (903) which are vertically arranged are fixedly arranged on the electromagnets (901), the other ends of the tensioning springs are fixedly arranged on the tensioning sliding blocks (902), tensioning supports (904) which are of inverted U-shaped structures are horizontally arranged on the tensioning sliding blocks (902), tensioning rollers (905) are horizontally and rotatably arranged in the tensioning supports (904), and the bottom end portions of the tensioning rollers (905) are located outside the tensioning supports (904) and can be abutted to the coiled material (16).

3. The heavy material rack convenient for loading and unloading according to claim 1, characterized in that it further comprises a driving mechanism (14) for driving any one of the profiled rotating shafts (8) to rotate, said driving mechanism (14) comprising: a first drive gear (1401), a second motor (1402) and a second drive gear (1403); wherein, the liquid crystal display device comprises a liquid crystal display device,

any conical special-shaped rotating shaft (8) is fixedly provided with a first driving gear (1401) towards one end of the lifting screw rod (2) adjacent to the special-shaped rotating shaft, a second motor (1402) is vertically and fixedly arranged on the sliding plate (7) corresponding to the special-shaped rotating shaft (8), and an output shaft of the motor is vertically and fixedly provided with a second driving gear (1403) meshed with the first driving gear (1401).

4. The heavy material rack convenient for loading and unloading according to claim 1, characterized in that it further comprises a cylinder (11) for driving the two slide plates (7) to move; wherein, the liquid crystal display device comprises a liquid crystal display device,

the utility model discloses a sliding plate, including connecting plate (6), connecting plate, wherein the lower surface interval of (6) is just vertical is provided with two mounting plates, and the face level in opposite directions of two mounting plates is fixed to be provided with support guide bar (5), two slide (7) level run through and are provided with the guiding hole, and two slide (7) are assembled through this guiding hole slidable respectively on supporting guide bar (5), every the equal horizontal fixed cylinder (11) that is of mounting plate, its piston rod's that is the level setting free end horizontal fixed setting rather than adjacent on slide (7).

5. The heavy material rack convenient for loading and unloading according to claim 4, wherein two ends of the connecting plate (6) are respectively horizontally sleeved on the connecting springs (10), one end of each connecting spring (10) is horizontally and fixedly arranged on the mounting plate, and the other end of each connecting spring is horizontally and fixedly arranged on the sliding plate (7).

6. The heavy material frame convenient to load and unload according to claim 1, further comprising a vertical frame (4), wherein the upper surface of the bottom plate (1) is vertically provided with a vertical frame (4) in an inverted-L shape beside each lifting screw (2), and the top of each lifting screw (2) vertically penetrates through and is rotatably arranged at the top of the vertical frame (4) and is coaxially connected with a first motor (12) fixed at the top of the vertical frame (4) through a coupling.

7. The heavy material frame convenient for loading and unloading according to claim 6, wherein a guide rail (13) parallel to the lifting screw rod (2) is vertically and fixedly arranged on each vertical frame (4), a lifting sliding block (3) on the lifting screw rod (2) is inwards recessed towards one side part of the guide rail (13) to form a guide groove matched with the guide rail (13), and the lifting sliding block (3) is slidably assembled on the guide rail (13) through the guide groove.